import React, { createRef, useEffect } from "react";
// 引入 echarts 核心模块，核心模块提供了 echarts 使用必须要的接口。
import * as echarts from "echarts/core";
// 引入柱状图图表，图表后缀都为 Chart
import { LineChart } from "echarts/charts";
// 引入提示框，标题，直角坐标系，数据集，内置数据转换器组件，组件后缀都为 Component
import {
	TitleComponent,
	TooltipComponent,
	GridComponent,
	DatasetComponent,
	TransformComponent,
} from "echarts/components";
// 标签自动布局，全局过渡动画等特性
import { LabelLayout, UniversalTransition } from "echarts/features";
// 引入 Canvas 渲染器，注意引入 CanvasRenderer 或者 SVGRenderer 是必须的一步
import { CanvasRenderer } from "echarts/renderers";

// 注册必须的组件
echarts.use([
	TitleComponent,
	TooltipComponent,
	GridComponent,
	DatasetComponent,
	TransformComponent,
	LineChart,
	LabelLayout,
	UniversalTransition,
	CanvasRenderer,
]);

export default () => {
	const box = createRef();

	useEffect(() => {
		// 基于准备好的dom，初始化echarts实例
		const myChart = echarts.init(box.current);
		// 绘制图表
		myChart.setOption({
			xAxis: {
				type: "category",
				data: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
			},
			yAxis: {
				type: "value",
			},
			series: [
				{
					data: [150, 230, 224, 218, 135, 147, 260],
					type: "line",
				},
			],
		});
	}, []);

	return (
		<div className="w-full h-full">
			<div className=" w-full h-full" ref={box}>
				home
			</div>
		</div>
	);
};
